Company facts
- Industry
- Special Industry Machinery, NEC
- Headquarters
- Fremont, California
- Most recent report
- 8-K, filed Aug 27, 2026
- Incorporated
- California
- Filings on record
- 626 filings
- On EDGAR
- CIK 1680062
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 40
News 8 of 137
Prospectuses and Registrations 8 of 20
- 424B5 Prospectus supplement for an offering May 12, 2026
- S-8 Registration statement for an employee plan Mar 4, 2026
- S-8 Registration statement for an employee plan Mar 3, 2025
- S-3ASR Automatic shelf registration Mar 18, 2024
- S-8 Registration statement for an employee plan Mar 18, 2024
- S-8 Registration statement for an employee plan May 15, 2023
- S-8 Registration statement for an employee plan Mar 11, 2021
- S-1 Registration statement for an offering May 26, 2020
Proxies 8 of 22
- DEF 14A Proxy statement for a shareholder vote Apr 27, 2026
- DEFA14A Extra proxy material Apr 29, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 29, 2025
- DEFA14A Extra proxy material Apr 26, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 26, 2024
- DEFR14A May 23, 2023
- DEFA14A Extra proxy material May 1, 2023
- DEF 14A Proxy statement for a shareholder vote May 1, 2023
Ownership 8 of 377
- 4 Insider reported a trade Sep 10, 2026
- 144 Notice of a proposed sale of restricted stock Sep 9, 2026
- 144 Notice of a proposed sale of restricted stock Sep 8, 2026
- 4 Insider reported a trade Aug 26, 2026
- 4 Insider reported a trade Aug 26, 2026
- 4 Insider reported a trade Aug 26, 2026
- 4 Insider reported a trade Aug 21, 2026
- 4 Insider reported a trade Aug 20, 2026
Other 8 of 30
- UPLOAD Comment letter from SEC staff Sep 7, 2023
- CORRESP Reply to SEC staff Aug 18, 2023
- UPLOAD Comment letter from SEC staff Aug 4, 2023
- NT 10-K Notice that an annual report will be late Mar 2, 2023
- UPLOAD Comment letter from SEC staff Feb 10, 2023
- CORRESP Reply to SEC staff Feb 8, 2023
- UPLOAD Comment letter from SEC staff Jan 25, 2023
- CORRESP Reply to SEC staff Dec 5, 2022
Everything here comes from ACM Research, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.